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<div class="content" data-ice="content"><h1 data-ice="title">src/explorer/Storeys.js</h1>
<pre class="source-code line-number raw-source-code"><code class="prettyprint linenums" data-ice="content">import {Controller} from &quot;../Controller.js&quot;;
import {TreeViewPlugin} from &quot;@xeokit/xeokit-sdk/src/plugins/TreeViewPlugin/TreeViewPlugin.js&quot;;
import {ContextMenu} from &quot;@xeokit/xeokit-sdk/src/extras/ContextMenu/ContextMenu.js&quot;;
import {TreeViewContextMenuItems} from &quot;../contextMenuItems/TreeViewContextMenuItems.js&quot;;

/** @private */
class Storeys extends Controller {

    constructor(parent, cfg = {}) {

        super(parent);

        if (!cfg.storeysTabElement) {
            throw &quot;Missing config: storeysTabElement&quot;;
        }

        if (!cfg.showAllStoreysButtonElement) {
            throw &quot;Missing config: showAllStoreysButtonElement&quot;;
        }

        if (!cfg.hideAllStoreysButtonElement) {
            throw &quot;Missing config: hideAllStoreysButtonElement&quot;;
        }

        if (!cfg.storeysElement) {
            throw &quot;Missing config: storeysElement&quot;;
        }

        this._storeysTabElement = cfg.storeysTabElement;
        this._showAllStoreysButtonElement = cfg.showAllStoreysButtonElement;
        this._hideAllStoreysButtonElement = cfg.hideAllStoreysButtonElement;
        this._storeysTabButtonElement = this._storeysTabElement.querySelector(&quot;.xeokit-tab-btn&quot;);

        if (!this._storeysTabButtonElement) {
            throw &quot;Missing DOM element: .xeokit-tab-btn&quot;;
        }

        const storeysElement = cfg.storeysElement;

        this._treeView = new TreeViewPlugin(this.viewer, {
            containerElement: storeysElement,
            autoAddModels: false,
            hierarchy: &quot;storeys&quot;
        });

        this._treeViewContextMenu = new ContextMenu({
            items: TreeViewContextMenuItems
        });

        this._treeView.on(&quot;contextmenu&quot;, (e) =&gt; {
            this._treeViewContextMenu.show(e.event.pageX, e.event.pageY);
            this._treeViewContextMenu.context = {
                viewer: e.viewer,
                treeViewPlugin: e.treeViewPlugin,
                treeViewNode: e.treeViewNode
            };
        });

        this._onModelLoaded = this.viewer.scene.on(&quot;modelLoaded&quot;, (modelId) =&gt;{
            const modelInfo = this.viewerUI._controllers.models.getModelInfo(modelId);
            if (!modelInfo) {
                return;
            }
            this._treeView.addModel(modelId, {
                rootName: modelInfo.name
            });
        });

        this._onModelUnloaded = this.viewer.scene.on(&quot;modelUnloaded&quot;, (modelId) =&gt; {
            if (this.viewer.metaScene.metaModels[modelId]) {
                this._treeView.removeModel(modelId);
            }
        });

        this.viewerUI.on(&quot;reset&quot;, () =&gt; {
            this._treeView.collapse();
            this._treeView.expandToDepth(1);
        });
    }

    setEnabled(enabled) {
        if (!enabled) {
            this._storeysTabButtonElement.classList.add(&quot;disabled&quot;);
            this._showAllStoreysButtonElement.classList.add(&quot;disabled&quot;);
            this._hideAllStoreysButtonElement.classList.add(&quot;disabled&quot;);
        } else {
            this._storeysTabButtonElement.classList.remove(&quot;disabled&quot;);
            this._showAllStoreysButtonElement.classList.remove(&quot;disabled&quot;);
            this._hideAllStoreysButtonElement.classList.remove(&quot;disabled&quot;);
        }
    }

    showNodeInTreeView(objectId) {
        this._treeView.collapse();
        this._treeView.showNode(objectId);
    }

    destroy() {
        super.destroy();
        this._treeView.destroy();
        this._treeViewContextMenu.destroy();
        this.viewer.scene.off(this._onModelLoaded);
        this.viewer.scene.off(this._onModelUnloaded);
    }
}

export {Storeys};</code></pre>

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